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sergey [27]
3 years ago
13

How many moles of O2 are in a flask with a volume of 0.45 L at a pressure of 320 kPa and a

Chemistry
2 answers:
Sliva [168]3 years ago
7 0

Answer:

0.0833 moles of O₂

Explanation:

Most usual Law to solve this sort of problem, is the Ideal Gases Law

Pressure .  Volume = number of moles .  R . Temperature

where R is the Ideal Gases Constant → 0.082 L.atm/mol.K

First of all we need to convert the pressure from kPa to atm, because the Units of R

320 kPa . 1  atm / 101.3 kPa = 3.16 atm

Now, you replace data:

3.16 atm . 0.45L = mol . 0.082 L.atm/mol.K . 280K

(3.16 atm . 0.45L) / (0.082 L.atm/mol.K . 280K) = mol

0.0833 moles of O₂

Digiron [165]3 years ago
5 0

Answer:

.32

Explanation:

idek i just need brainly tokens

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<h3>How are elements named?</h3>

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brainly.com/question/14347616

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